diff --git a/imgui_demo.cpp b/imgui_demo.cpp
index 94a5b52a..8f782ac2 100644
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp
@@ -1871,6 +1871,7 @@ struct ExampleAppConsole
     ExampleAppConsole()
     {
         ClearLog();
+        memset(InputBuf, 0, sizeof(InputBuf));
         HistoryPos = -1;
         Commands.push_back("HELP");
         Commands.push_back("HISTORY");